C / C++ / MFC

22-Aug-05 5:16

Hi,
I'm writing an app which has a transparent dialog SetLayeredWindowAttributes But I need a transparent dialog witout transparent Child Windows, I mean not a transparent button, text, combo, ... .

Is there any way?idea? Confused | :confused:

Thank you in advanced.

tooltips for bitmaps?

sayup22-Aug-05 5:13

sayup

22-Aug-05 5:13

hello,
I have bitmaps created on my dialog box.When my mouse will go on on each bitmap i want to dispaly some text.Will somebody guide me how to use CToolTipCtrl class.In that there is AddTool () function,but i am getting error while passing handler or id to bitmap.The function doesnt take it.hwta is the solution?
please help

thanks in advance

Hamed Musavi22-Aug-05 5:33

22-Aug-05 5:33

I'm not sure if there is a way to put a tooltip for a bitmap, once I wanted to do this, I finally used the bounding rectangle instead of the bitmap itself!!! it might help.

myTooltipCtrl.AddTool(this/*My Dialog pointer*/,_T("tip text"),rect/*Bounding rectangle*/, 1);

sayup22-Aug-05 18:21

sayup

22-Aug-05 18:21

hello,
Can you please expalin what is ounding rectangle?I am placing my bitmap in a picture control.So in place of first parameter 'this' in AddTool() function shall i give id of pictue control.
please help

thanks in advance

Hamed Musavi22-Aug-05 22:32

22-Aug-05 22:32

Hi,
First of all, It's NOT 'ounding' as you said Laugh | :laugh:

;) Its Bounding.

I had not enough time to read (MSDN), this is all my memories!!, so there might be some problems,Please first read (MSDN) carefully for all functions here, before using them.
Do the following:

1-Activate 'Notify' on 'Style' tab of your 'picture control'(In Resource editor)

2-On your InitDialog :

// No tooltip created
m_toolTip.m_hWnd = NULL;
// Create ToolTip control
m_toolTip.Create(this, TTS_ALWAYSTIP );
// Enable multiline
m_toolTip.SendMessage(TTM_SETMAXTIPWIDTH, 0, 400);

CRect rc;<br />
GetDlgItem(IDC_PIC)->GetClientRect(rc);<br />
m_toolTip.AddTool(GetDlgItem(IDC_PIC),"ToolTip",rc,IDC_PIC);

//Time to activate tooltip
m_toolTip.Activate(TRUE);

3-Using your ClassWizard, Add a message handler for: 'PreTranslateMessage'

4-In the function :

... PreTranslateMessage(MSG* pMsg)
{

	//Add this line<br />
m_toolTip.RelayEvent(pMsg);

}

Hope this will help Smile | :)

Bob Ciora22-Aug-05 6:36

Bob Ciora

22-Aug-05 6:36

This can be done automatically using Visual Studio. If you look at the Properties for any of the "standard" toolbar buttons generated for a blank project (SDI or MDI), check out the "Prompt" line at the very bottom of this dialog. There will be 2 strings, separated by a newline character. The first string will be displayed in the status bar, while the second will be used as the popup tooltip text (what you're looking for).

For example, the standard ID_FILE_SAVE button's Prompt string reads "Save the active document\nSave". "Save the active document" is displayed on the status bar while hovering over this button, while "Save" is displayed as the tooltip text while hovering.

Note that this prompt string also affects any menu items that use the same ID. Only the first of the Prompt strings is used, however, to fill in the status bar.

To get the tooltips for your buttons, just edit the Prompt string under the button's Properties.

Hope this helps.

Bob Ciora

Bob Ciora22-Aug-05 6:37

Bob Ciora

22-Aug-05 6:37

I should mention also that this Prompt string information is also saved to your application's String Table under the ID of the command itself.

Bob Ciora

Hamed Musavi22-Aug-05 10:20

steps needed to call DeviceIoControl

22-Aug-05 10:20

Dear Mr. Bob
Hi,

Your answer is elegant but not for his question perhaps, he asked:

I have bitmaps created on my dialog box....

Will somebody guide me how to use CToolTipCtrl [NOT CToolbar]class.In that there is AddTool () ...

gamitech22-Aug-05 5:05

gamitech

22-Aug-05 5:05

Hello,
I have designed a simple device driver that export with the help of IOCTL's some variables.
I made a win 32 api that load the driver, and looks up an event in the driver.
The event works just fine it signales everytime it should, but whenever I call DeviceIoControl and then I call GetLastError(), FormatMessage() I see that the error mesage is always the same: "The parameter is incorrect" . I don't know what parameter, bacause I have checked all parameters and they are all correct.
Maybe I have missed something before calling DeviceIoControl function.
These are the steps I considered:
OpenSCManager();
CreateService(); if service already running OpenService()
StartService();
CreateFile(); //get the driver's handle
OpenEvent(); //get the event handle created by the driver;
DeviceIoControl(); //and I get the error
and then it is not important because it is not related to;
Please tell me what can be wrong. the IOCTL -> CTLCODE are the same in the driver as in the aplication.
I don't see what can I miss.
If you want I can give you a code snippet.
Thanks

gabby

David Crow22-Aug-05 5:12

David Crow

22-Aug-05 5:12

How are you calling DeviceIoControl()?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

gamitech22-Aug-05 10:01

gamitech

22-Aug-05 10:01

int st=DeviceIoControl(hDrv,
IOCTL_PROCOBSRV_ACTIVATE_MONITORING,
&activateInfo,
sizeof(activateInfo),
NULL,
0,
&ret,
NULL
);

gabby

David Crow22-Aug-05 10:32

David Crow

22-Aug-05 10:32

Is this article of any help? It uses that same control code.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb